The noun "drink" can be both countable and uncountable. In the title, it uses "drink" as it refers to all sorts of drinks, in general. Using "drink" in the plural form is common and more GENERAL. But "drinks" can also be used in more specific contexts, if you are specifically referring to various types of drinks (e.g.: coke, orange juice, water, wine, coffee and tea, etc).

The short answer is that we say “food and drink” as a matching noun pair in a certain context. For example, a party organizer will have to plan the venue, the entertainment, and the food and drink. I think ‘refreshments’ is a little more common colloquially. ‘Food and drink’ would be a good heading on a spreadsheet budget, and it could also define a category consisting of words. As a list of vocabulary words, there is a good case for “foods and drinks”. (I.e. type of food=food, types of food=foods) e.g. Here are 100 foods and drinks that might be useful to know for your English test. Note that using ‘drink’ in a countable way often implies alcohol. I need some food. I need something to eat. (I’m hungry) I need drink. (No) I need some drink. (No) I need a drink. (Yes, but often means ‘alcohol’) I need something to drink. (Yes, I’m thirsty) So in the party context, we might avoid adding the ‘s’ to ‘drink’ to avoid confusion.